RU2554906C2 - Rope transport system with at least one supporting rope and one pulling rope - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to rope transport system. The rope transport system with at least one supporting rope (2) and one pulling rope (3) has at least one shoe (13) to support part of supporting rope (2) and at least one bogie (4) having at least one roller (8) by means of which rolling along supporting rope (2) is performed which rope determines rolling guide (17) for the roller (8). The shoe (13) determines two auxiliary rolling guides (18) which are parallel to rolling guide (17), located on opposite sides of supporting rope (2) and made curved in their cross-section. The roller (8) is made capable to roll with increased contact along at least one of auxiliary rolling guides(18) of the shoe (13).

EFFECT: higher safety and convenience of rope transport system.

10 cl, 15 dwg

Description

FIELD OF THE INVENTION

The present invention relates to a cable transport system with at least one support cable and one traction cable.

State of the art

The cable transport systems of the above type are usually located between the lower and upper flip stations, at the intermediate points between which, for various reasons, support and traction cables often have to be suspended. For example, the distance between the lower and upper flip stations is too large for one support and one traction cable; the topography of the trajectory of the cable transport system requires a change in the slope of the support and traction cables, and the trajectory of the cable transport system has at least one bend. For at least one of these reasons, many cable transport systems contain one or more intermediate support legs, each of which contains a vertical support structure, such as a pylon or tower, and, mounted on the top of the vertical support, a support shoe, the upper end of which supports supporting cable, and under the upper end there are many rollers to maintain the traction cable.

The cable transport systems of the above type comprise at least one carriage to which a corresponding transport unit is suspended and which is selectively attached to the traction cable using automatic fastening systems or is permanently connected to the traction cable. In both types of cable transport systems, this trolley comprises at least one roller that rolls along a support cable that is partially enclosed within the roller groove.

When the trolley runs along the shoe, the traction cable located under the support cable is raised by this trolley above the support rollers and applies a downward pulling force to this trolley. More specifically, the traction force is generated by the traction cable raised from its support rollers and transmitted through the trolley roller to the support cable, which is protected from bending or deformation by the shoe in the direction of the traction cable. Located on top of the shoe, the support cable is thus sandwiched between the trolley roller and the shoe by the traction force exerted by the support cable, to which the weight of the truck and the corresponding transport unit are added.

Since the support cable is made of metal wire, its compression in this way is an obvious "minus", and in the long run can lead to damage to the support cable and seriously reduce the safety of the entire cable transportation system as a whole.

Disclosure of invention

An object of the present invention is to provide a cable transport system with at least one support cable and one traction cable, designed in such a way that it eliminates the aforementioned disadvantage of the prior art system.

Another objective of the present invention is to provide a cable transportation system with at least one support cable and one traction cable, which is both safe and convenient.

In accordance with the present invention, there is provided a cable transport system with at least one support cable and one traction cable, comprising at least one shoe for supporting part of the support cable and at least one trolley having at least one roller, by means of which rolling along the support cable, which defines the rolling guide for the roller, while the shoe defines two auxiliary rolling guides that are parallel to the rolling guide, located on Counterface sides of the support cable and are curved in cross-section, wherein the roller is in rolling contact with an increased along at least one auxiliary rolling guide shoe.

Thus, the support cable is not subject to any strong voltage and in some cases is not pressed against the shoe in any way, while the contact between the trolley roller and the shoe is increased for any position of the trolley.

In another preferred embodiment, the shoe comprises a central element and two side elements located on opposite sides of the central element, with each auxiliary rolling guide extending along the upper end of the corresponding side element.

In a preferred embodiment, the shoe comprises a central element having a seat for accommodating a portion of the support cable, the side elements and the central element being elastically connected so that the roller can simultaneously roll along the auxiliary rolling guides and along the rolling guide.

In this embodiment, any shock arising during the landing of the trolley on the shoe and its removal from it is mitigated.

Brief Description of the Drawings

A number of non-limiting embodiments of the present invention will now be described by way of examples with reference to the accompanying drawings, in which:

Figure 1 is a schematic front view in partial section of a cable transport system in accordance with the first embodiment of the present invention, in which some parts are excluded for greater clarity;

Figure 2 is a side view of the cable transport system of figure 1, in which some parts are excluded for greater clarity;

Figures 3, 4 and 5 are front views on an enlarged scale in partial section of one of the elements of the system of figure 1, in which some parts are excluded for greater clarity, in three different working steps;

6, 7 and 8 are front views in enlarged scale in partial section of one of the elements of the cable transport system, in which some parts are excluded for greater clarity, in accordance with the second embodiment of the present invention in three different working steps;

Figures 9, 10 and 11 are front views on an enlarged scale in partial section of one of the elements of a cable transport system in which some parts are excluded for greater clarity, in accordance with a third embodiment of the present invention in three different working steps;

12, 13 and 14 are front elevational views in partial cross-section of one of the elements of a cable transport system in which some parts are excluded for greater clarity, in accordance with a fourth embodiment of the present invention in three different working steps;

FIG. 15 is a side view of one of the elements of a cable transport system in which some parts are omitted for clarity, in accordance with a fifth embodiment of the present invention.

Preferred Embodiment

Position 1 in figure 1 denotes the entire cable transport system as a whole, comprising a support cable 2, a traction cable 3 and at least one trolley 4 mounted for movement along the support cable 2, and, as shown in figure 2, fastened with traction cable 3 with the ability to move in the direction D1.

In the described example, a specific reference is made to a cable transport system with one support cable, however, it should be understood that the present invention also relates to cable transport systems with more than one support cable. In addition, in the example shown in the drawings, the cable transport system is an automatic type fastening system, it should be understood that the present invention also relates to cable transport systems in which the trolley is permanently attached to this traction cable.

The cable transport system 1, the support cable 2 and the traction cable 3 extend between the lower rotary station (not shown) and the upper rotary station (not shown). At intermediate points between the lower and upper rotary stations (not shown), the support cable 2 and the traction cable 3 are supported by intermediate supports 5, one of which is shown in FIG.

With reference to figure 2, during operation, the truck 4 by means of the traction cable 3 moves in the direction D1, while it contains a frame 6, two swinging arms 7 with free rotation relative to the frame 6 and four rollers 8, freely attached to two swinging arms 7 , and which during operation roll along the support cable 2.

With reference to FIG. 1, the trolley 4 comprises a clip 9 attached to the pull cable 3, as well as a drive device 10 for releasing the clip 9 at the flip stations (not shown). As shown more clearly in FIG. 4, the trolley 4 is connected via a bracket 11, which rotates relative to the frame 6, to a transport unit, for example, to a cab or seat (not shown).

The support 5 shown in FIG. 2 comprises a vertical support structure 12 and a shoe 13 mounted on the upper part of the support structure 12, and which includes an upper end and a plurality of rollers 14. The rollers 14 serve to support the traction cable 3 and are located under the upper end, which serves to support the support cable 2.

The shoe 13 can extend to a length of 50 meters and can be slightly curved to fit with the sagging of the support cable 2 and the traction cable 3 on both sides of the support 5. In some systems, in addition to the curvature for matching with the sagging, the shoe 13 can be bent in a horizontal plane, forming curvatures in the trajectory of the system.

As shown in figure 3, the support cable 2 is partially located at the upper end of the shoe 13, it is made of steel wire and has a more or less round cross-section. At its upper end, the shoe 13 comprises a central element 15 and two side elements 16, in the shown example made integrally with the central element 15 and located on its opposite sides. The shoe 13 generally defines a seat corresponding to the support cable 2, which protrudes from the upper end of the shoe 13 relative to the side members 16, and the top of the support cable 2 defines a rolling guide 17 for the rollers 8 of the trolley 4. That is, the rollers 8 roll along sections of the support cable 2, protruding outward from the shoe 13, along the rolling guide 17 of the support cable 2.

In the example shown, shoe 13 also defines two auxiliary rolling guides 18. These two auxiliary rolling guides 18 are parallel to the rolling guide 17, located on opposite sides of the support cable 2 and made in their cross section curved with respect to the direction of movement D1 of the carriage 4.

Each auxiliary rolling guide 18 extends along the upper end of the corresponding side member 16. More specifically, each side member 16 has an upper surface 19, a side surface 20 and a rounded edge 21 connecting the upper surface 19 to the side surface 20, and makes the auxiliary rolling guide 18 convex form. Roughly speaking, each auxiliary rolling guide 18 extends along the upper surface 19 and along the rounded edge 21 and in its cross section at least partially has an arcuate shape.

With reference to FIG. 4, each roller 8 rotates freely about an axis A1 with respect to the swing arm 7 (see FIG. 2), while it comprises a cylindrical element 22 and on the opposite sides of the cylindrical element 22 two ring plates 23. In the example shown the annular plates 23 are attached to the cylindrical element 22, but in the embodiment not shown, they are made integrally with it.

The cylindrical element 22 has an annular surface 24 that is capable of rolling along at least one of the auxiliary guides 18 of rolling along a portion of the support cable 2 supported by the shoe 13. More specifically, the cylindrical element 22 has a central annular groove 25 so that it fits under the support cable 2, and on opposite sides of the central groove 25, two concave annular rolling surfaces 26, corresponding to the auxiliary guides 18 of the rolling.

In Fig. 4, the central groove 25 has a predetermined depth A relative to the annular rolling surfaces 26, and the support cable 2 protrudes relative to the side elements 16 or, rather, relative to the auxiliary rolling guides 18, to a height B less than the depth A, so that when the trolley 4 runs along the shoe 13, the support cable 2 rollers 8 is not compressed.

As shown in FIGS. 4 and 5, depending on the position of the trolley 4, that is, on the inclination of the trolley 4 relative to the longitudinal axis of the traction cable 3 (see FIG. 1), which depends on the load transmitted to the trolley 4 by the transport unit, a cylindrical element 22 may be positioned by touching one or both of the auxiliary rolling guides 18. Wind or a large unbalanced load can cause the position of the trolley 4, as shown, for example, in FIG. 5, in which the central element 22 touches the auxiliary rolling guide 18 only to the right of the support cable 2, while other unbalanced loads can tilt the trolley 4 in the opposite direction from that shown in FIG.

When the load transmitted to the carriage 4 is more or less balanced (see Fig. 4), the roller 8 rolls along both auxiliary rolling guides 18, forming a gap between the rolling guide 17 and the central groove 25.

As the trolley 4 runs along the shoe 13, as shown in FIG. 2, the support cable 2 is subjected to a compressive force, which in this case will be especially strong, since the load transmitted by the supporting trolley (not shown) by the trolley 4 is completely " is released "in the form of compression, pressing the support cable 2 to the shoe 13. In addition, the support cable 2 is also compressed by the tension exerted on it by the cable 3, lifted from the rollers 14, when the trolley 4 runs along the shoe (see figure 2).

The design of the two auxiliary rolling guides 18 and the two annular rolling surfaces 26 provides an extensive theoretically linear contact at any position of the carriage 4. The position of the carriage 4 shown in FIG. 5 is only an instantaneous state that can occur when the carriage 4 interacts with the shoe 13. The subsequent pulling force exerted on the trolley 4 brings it to the form shown in Fig. 4.

In the embodiment of FIGS. 6, 7 and 8, the shoe 13 is replaced by a shoe 27, which comprises a central element 28, two composite side elements 29 and an elastic element 30 located between the side elements 29 and the central element 28. The side elements 29 are fastened to the supporting structure 12 (see figure 2) and are located on opposite sides of the Central element 28, which slides relative to these side elements 29 and defines a seat corresponding to the support cable 2, which protrudes from the upper end of the shoe 27 relative to the lateral ments 29 by a variable amount. As in the embodiment of FIGS. 3, 4 and 5, the top of the support cable 2 defines a rolling guide 17 for the rollers 8 of the carriage 4 (see FIG. 7).

The shoe 27 defines, for the rollers 8, two auxiliary rolling guides 31 parallel to the rolling guide 17 and located on opposite sides of the support cable 2.

In its cross section, two auxiliary rolling guides 31 are made curved relative to the direction of movement D1 of the trolley 4 and, in the example shown, comprise an arcuate section.

Each auxiliary rolling guide 31 extends along the upper end of the corresponding side element 29. More specifically, each side element 29 has an upper surface 32, a side surface 33 and a rounded edge 34 connecting the upper surface 32 to the side surface 34, and each auxiliary rolling guide 31 continues along the upper surface 32 and the rounded edge 34, which in the shown example has an arcuate shape.

The central element 28 slides in the direction D2, relative to the side elements 29, each of which has two opposite abutment surfaces defining the course of the central element 28. The elastic element 30, also located between the two side elements 29, is shown in the example of FIG. 6. 7 and 8 is a coil spring and serves to push the central element 28 to the upper abutment surfaces, so that the support cable 2 projects from the side elements 29 to the maximum possible value. Depending on the length of the shoe 27, one elastic element 30 or several elastic elements evenly spaced from each other can be installed. When the load transmitted to the trolley 4 is more or less balanced, when moving the roller 8 along the shoe 27, as shown in Fig. 7, the annular rolling surfaces 26 roll along both auxiliary rolling guides 31, and the central annular groove 25 rolls along the rolling guide 17 . In this case, the support cable 2 under the action of the load from the trolley 4 is recessed and distributes part of the load directly to the shoe 27.

In the embodiment of FIGS. 9, 10 and 11, the shoe 13 is replaced by a shoe 35, which includes a central element 36, two composite side elements 37, which are slidably attached to the central element 36, and elastic elements located between the side elements 37 and the central element 36 38. The side elements 37 are located on opposite sides of the central element 36, which is fastened to the supporting structure 12 (see figure 2) and defines a seat corresponding to the supporting cable 2, which protrudes from the top of the shoe 35 relative of the side members 37 by a variable amount. In the example shown, the elastic elements are pieces of elastomeric material. As in the embodiment of FIGS. 6-8, the top of the support cable 2 defines a rolling guide 17 for the rollers 8 of the carriage 4 (see FIG. 10).

The shoe 35 defines, for the rollers 8, two auxiliary rolling guides 39 parallel to the rolling guide 17 and located on opposite sides of the support cable 2.

In its cross section, two auxiliary rolling guides 39 are made curved relative to the direction of movement D1 of the trolley 4.

Each auxiliary rolling guide 39 extends along the upper end of the corresponding side member 37. More specifically, each side member 37 has an upper surface 40, a side surface 42 and a rounded edge 42 connecting the upper surface 40 to the side surface 41, and each auxiliary rolling guide 39 continues approximately along the upper surface 40 and the rounded edge 42, which in the shown example has an arched shape in cross section.

Each side element 37 is slidably attached to the central element 36 in the direction D2 by screws 43 that are attached to the central element 36 and enter the slots 44, allowing limited movement of the side elements 37 in the D2 direction relative to the central element 36.

In the embodiment of FIGS. 12, 13 and 14, shoe 13 is replaced by shoe 45 and roller 8 is replaced by roller 46. Support cable 2 is located along shoe 45 at a seat formed at the top of shoe 45, which contains a central element 47, and two in the example shown, made in one piece with the Central element 47 of the side element 48 located on its opposite sides. Shoe 45 as a whole defines a seat corresponding to the support cable 2, which protrudes from the top of shoe 45 relative to the side elements 48, and the top of the support cable 2 defines the rolling guide 17 of the roller 46. That is, the roller 46 rolls along the support cable 2 along sections of the support cable 2 protruding outward from the shoe 45, touching the rolling guide 17.

In the shown example for the rollers 8, the shoe 45 also defines two auxiliary rolling guides 49 parallel to the rolling guide 17 and located on opposite sides of the support cable 2. These two auxiliary rolling guides 49 have a curved - in the shown example, concave - cross section, in contrast to convex cross sections in the three previous embodiments, and these cross sections are preferably arched.

Each auxiliary rolling guide 49 extends along the upper end of the corresponding side member 48. More specifically, each side member 16 has an upper surface 50 and a side surface 51, and each auxiliary rolling guide 49 extends approximately along the upper surface 50, which in cross section has arcuate shape.

13 and 14, the roller 46 freely rotates around the axis A1 relative to the swing arm 7, while it contains a cylindrical element 52 and on the opposite sides of the cylindrical element 52 two ring plates 53. In the shown example, the ring plates 53 are attached to the cylindrical element 52, but in an embodiment not shown, they are made with it in one piece.

The cylindrical element 52 has an annular surface 54 that is capable of rolling along at least one of the auxiliary guides 49 of rolling along a portion of the support cable 2 supported by the shoe 45. More specifically, the cylindrical element 52 has a central annular groove 55 so that it matches support cable 2, and on opposite sides of the central groove 55, two toroidal annular rolling surfaces 56, preferably of an arc cross section, responsive to the auxiliary direction barking 49 rolling.

13, the central groove 55 with respect to the annular rolling surfaces 56 has a predetermined depth A, and the support cable 2 protrudes relative to the side elements 48 or, rather, relative to the auxiliary rolling guides 49, to a height B less than the depth A.

As shown in FIGS. 13 and 14, depending on the position of the trolley 4, the cylindrical element 52 can be positioned by touching one or both auxiliary rolling guides 49, but in both cases significant contact is achieved between the roller 46 and the auxiliary rolling guide (or guides) 49 .

13 and 14, the trolley contains an anti-derailment device 57, which, in the shown example, is attached to each of the swinging arms 7 and contains a reverse U-shaped element that extends partially along the side elements 48 of the shoe 45. To prevent the rollers 46 from converging with the guide partially assigned, in addition, to the annular plates 53, which extend along the upper ends of the side elements 48, when the trolley 4 runs along the shoe 45.

Embodiments in which the side elements and the central element are movable relative to each other have additional advantages of damping any impacts when connecting and disconnecting from the shoe.

In the embodiment of FIGS. 6-8, the central element, depending on the length and shape of the shoe, may be made of a plurality of aligned segments.

In the embodiment of FIGS. 9-11, the side elements, depending on the length and shape of the shoe, may be made of a plurality of aligned segments.

In FIG. 15, shoe 13 is replaced by shoe 58, which includes an inlet portion 59, an intermediate portion 60, and an outlet portion 61 arranged in series in the direction D1. In this embodiment of the present invention, the intermediate portion 60 is made with the same characteristics as the shoe 13 (see FIGS. 3, 4, 5), and the end sections 59 and 61 are made with the same characteristics as the shoe 27 (see 6, 7, 8) or shoe 35 (see Fig. 9, 10, 11), in order to dampen any impacts of the trolley (not shown in Fig. 15) when connecting and disconnecting from the shoe, while the intermediate section 60 has the advantage of being easy to manufacture.

Obviously, the present invention extends to embodiments not described in the above detailed description, as well as equivalent embodiments, also within the scope defined by the appended claims.

Claims (10)

1. A cable transportation system with at least one support cable and one traction cable, comprising at least one shoe (13, 27, 35, 45, 58) for supporting part of the support cable (2) and at least one trolley (4 ) having at least one roller (8, 46), by means of which rolling along the support cable (2) is carried out, which defines the rolling guide (17) for the roller (8, 46), with the shoe (13, 27, 35, 45, 58) defines two auxiliary rolling guides (18, 31, 39, 49) that are parallel to the rolling guide (17) and are located on and on opposite sides of the support cable (2) and made concave or convex in cross section, while the roller (8, 48) is made with the possibility of rolling with increased contact along at least one of the auxiliary guides (18, 31, 39, 49) shoe (13, 27, 35, 45, 58) and contains a concave central groove (25), the reciprocal of the guide rail (17) of the rolling of the support cable (2), and two annular concave rolling surfaces (26) or two annular toroidal surfaces (56) rolling elements located on opposite sides of the central groove (25) and Making a to be mounted on support guides (18, 31, 39, 49) rolling. 2. The system according to claim 1, in which each auxiliary rolling guide (18, 31, 39, 49) has at least partially an arcuate cross section, the roller (8, 46) contains two annular rolling surfaces (26, 56), reciprocal auxiliary rolling guides (18, 31, 39, 49) to provide increased contact between the roller (8, 46) and the auxiliary rolling guide (18, 31, 39, 49). 3. The system according to claim 1 or claim 2, in which the shoe (13, 27, 35, 45, 58) contains a central element (15, 28, 36, 47) and two side elements (16, 29, 37, 48 ) located on opposite sides of the central element (15, 28, 36, 47), with each auxiliary rolling guide (18, 31, 39, 49) continuing along the upper end of the corresponding side element (16, 29, 37, 48). 4. The system according to claim 3, in which the central groove (25, 55) has a predetermined depth (A) relative to two annular rolling surfaces (26, 56), and the shoe (13, 45) contains two side elements (16, 48) located on opposite sides of the support cable (2), which protrudes from the auxiliary guides (18, 29) of rolling to a height (B) less than the specified depth (A). 5. The system according to claim 3, in which each side element (16, 29, 37) has an upper surface (19, 32, 40) and a side surface (20, 33, 41) connected by a rounded edge (21, 34, 42 ), while the auxiliary guide (18, 31, 39) of rolling continues along the upper surface (19, 32, 40) and the rounded edge (21, 34, 42). 6. The system according to claim 3, in which each side element (48) has an upper surface (50) with a concave cross section and a side surface (51), while the auxiliary guide rail (49) continues along the upper surface (50). 7. The system according to claim 3, in which the shoe (58) comprises an inlet section (59), an intermediate section (60) and an output section (61) arranged sequentially in the direction (D1) of the carriage (4), while the side elements (29, 37) and the central element (28, 36) are elastically connected at the input section (59) and the output section (61), so that the roller (8, 46) can simultaneously roll along the auxiliary guides (31, 39) of the rolling element and the guide (17) rolling, and the intermediate section (60) preferably contains side elements (16) and a central element (15) made in one Loe. 8. The system according to claim 1 or 2, in which the shoe (27, 35) contains a central element (28, 36) having a seat for accommodating part of the support cable (2) and two side elements (29, 37) located on opposite sides of the central element (28, 36), and the side elements (29, 37) and the central element (28, 36) are elastically connected so that the roller (8, 46) can simultaneously roll along the auxiliary guides (31, 39) of rolling and guide (17) rolling. 9. The system of claim 8, in which the side elements (29) are attached to the supporting structure (12), the central element (28) is slidingly connected to the side elements (29), and the shoe (27) contains an elastic element (30) located between the side elements (29) and the central element (28) so as to separate the rolling guide (17) from the auxiliary rolling guides (31). 10. The system of claim 8, in which the central element (36) is attached to the supporting structure (12), the side elements (37) are slidably connected to the central element (36), and the shoe (35) contains elastic elements (38) to bring the auxiliary guides (39) rolling and the guide (17) rolling close to each other.

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